E155 Final Project

Sensor Data Pipeline System

A complete embedded systems design implementing a multi-stage sensor data pipeline: Arduino reads BNO085 sensor data via I2C, transmits to FPGA via SPI, and FPGA bridges the data to STM32 MCU for processing. This project demonstrates hardware-software integration, SPI protocol implementation, and real-time sensor data processing.

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System Overview

Architecture

Arduino → FPGA → MCU Pipeline

The system implements a three-stage data pipeline where sensor data flows from the Arduino (reading BNO085 via I2C) through the FPGA (SPI bridge) to the STM32 MCU for final processing and application use.

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Key Technologies

Hardware & Protocols

FPGA: Verilog implementation of SPI slave interfaces
MCU: STM32L432KC with C-based SPI master
Arduino: BNO085 sensor interface via I2C
SPI Protocol: Mode 0, 100kHz communication

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Project Deliverables

Complete Documentation

Complete schematics and block diagrams
Well-commented C and Verilog source code
Photos of finished design
Video demonstration

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Project Deliverables

This website provides complete documentation of the final project design, including:

Design Documentation: Complete explanation of how the system works, architecture overview, and design decisions
Source Code: Well-commented and cleanly-formatted C (MCU) and Verilog (FPGA) code with links to GitHub repository
Schematics & Diagrams: Complete system block diagrams, FPGA architecture, MCU interface, and pin connections
Photos: Images of the finished design, hardware setup, and testing
Video: Demonstration video hosted on Google Drive showing the system in operation
Technical Details: Detailed documentation for future students, including SPI implementation, FPGA design patterns, and debugging techniques

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